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chris-mills
chris-mills
@chris-mills
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Joined: March 6, 2012 11:30 am
Topics: 9 / Replies: 706
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RE: GPS vs. GNSS

For what you are doing the only real benefit of GNSS is that the additional satellites will shorten the static time you need. That might be of value i...

6 years ago
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RE: Trying to make a Bilby tower

@norm-larson Trying to replace bit by bit with metal is a non-starter. As you try and add one bit the previous bits will probably unsolder unless it ...

6 years ago
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RE: Overpriced Ebay Junk, vs treasure

It's all junk until the day turns up when only that bit of gear can do it properly. Our very old entirely manual T2 sat for many years at the back of ...

6 years ago
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RE: Trying to make a Bilby tower

Norm, you are probably at the limit for printing. In smaller scale (2mm finescale - N in USA - 1:152) for that sort of latticework nothing beats etche...

6 years ago
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RE: Old aerial photos

Not really. Even with all the metadata to enable you to orientate it correctly there isn't any way from a single photo to deduce the relative heights ...

6 years ago
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RE: Bosch Distance Meter

Two points: We still have an ORIGINAL Disto, still works fine (re-celled a couple of times), has a nice rubber protective casing (easy to wash when it...

6 years ago
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RE: Multiple rovers on one base

When the base is grabbed, the controller does tell you which one it has found. You are "supposed" to check! ... and then confirm.

6 years ago
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RE: Adding Starnet coordinate systems

@mathteacher Your solution is probably correct, but the explanation is a little off. It's not a case of a different transform for older software syst...

6 years ago
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RE: I'm going to say this right now

@bill93 Are we measuring this on the plane or on the spheroid? (Depending how many acres, it might make a difference).

6 years ago
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RE: What do you call a "Pass through" cul de sac?

In the UK we would call it a "turning circle", or in the specific situation you describe the one within the road length a "turning circle within the r...

6 years ago
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RE: Topographical survey - which trees to pick up

@totalsurv Correct. I was on the panel which wrote the 1996 update and advised on the subsequent one. The 150mm diameter is a generic spec. for when...

7 years ago
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RE: Downward Spiral

@dmyhill Be careful what you wish for! A substandard surveyor who can be called to account by a professional body is still better than a substandard ...

7 years ago
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RE: Robot to controller range

It's normally the tracking rather than the radio which limits the range. The old GDM4400 used to manage 400+ metres, GDM640 and Trimble 5605 manage 35...

7 years ago
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RE: Mini prism

Always beware when mixing gear from different sources. With the (very) old Kern rectangular prisms, used with a Geodimeter the constant was different ...

7 years ago
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RE: Static GNSS Survey question

This is all getting a little over-theoretical. Apart from the end product being a benchmark, I don't think we have been told what the purpose of it is...

7 years ago
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RE: Software options for modifying point file grid density?

If the E and N values are whole numbers then you could drop the file into a spreadsheet, add an extra column to flag all entries where Emod4=0, Nmod4=...

7 years ago
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RE: Adding Text to a printed sheet of paper

Some roll feed plotters have an option within the menu to take cut sheets.?ÿ Look under Feed or Media settings. If yours does then the handbook should...

7 years ago
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RE: advantages of non-nodal prism assemblies ?

In short, good practice is not to mix accessories: keeping to one manufacturer minimises errors down to those you make yourself. Surely that's enough ...

7 years ago
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RE: Antenna or prism mount for fence posts

We've occasionally done the same with a short bolt welded to the top of a steel gatepost. Cattle proof and you do know if the point ever gets knocked....

7 years ago
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